KbtterWPF.ListWindow.Button_Click C# (CSharp) Method

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            if (ListsList.SelectedIndex == -1) return;
            var ls = (ListsList.Items[ListsList.SelectedIndex] as StackPanel).Tag as TwitterList;
            svc.DeleteList(new DeleteListOptions { ListId = ls.Id }, (lsx, re) =>
            {
                if (re.Error != null) return;
                ListsList.Dispatch(() => {
                    ListsList.Items.RemoveAt(ListsList.SelectedIndex);
                    ListsList.SelectedIndex = -1;
                });
            });
        }